Free for academic non-profit institutions. Other users need a Commercial license

Aliases for NEU1 Gene

Aliases for NEU1 Gene

  • Sialidase 1 (Lysosomal Sialidase) 2 3
  • N-Acetyl-Alpha-Neuraminidase 1 3 4
  • Acetylneuraminyl Hydrolase 3 4
  • Lysosomal Sialidase 3 4
  • G9 Sialidase 3 4
  • EC 4 63
  • NANH 3 4
  • Exo-Alpha-Sialidase 3
  • Sialidase 1) 6
  • Sialidase-1 3
  • SIAL1 3
  • NEU 3

External Ids for NEU1 Gene

Previous HGNC Symbols for NEU1 Gene

  • NEU

Previous GeneCards Identifiers for NEU1 Gene

  • GC06M031898
  • GC06M031597
  • GC06M031931
  • GC06M031934
  • GC06M031825

Summaries for NEU1 Gene

Entrez Gene Summary for NEU1 Gene

  • The protein encoded by this gene is a lysosomal enzyme that cleaves terminal sialic acid residues from substrates such as glycoproteins and glycolipids. In the lysosome, this enzyme is part of a heterotrimeric complex together with beta-galactosidase and cathepsin A (the latter is also referred to as 'protective protein'). Mutations in this gene can lead to sialidosis, a lysosomal storage disease that can be type 1 (cherry red spot-myoclonus syndrome or normosomatic type), which is late-onset, or type 2 (the dysmorphic type), which occurs at an earlier age with increased severity. [provided by RefSeq, Jul 2008]

GeneCards Summary for NEU1 Gene

NEU1 (Sialidase 1 (Lysosomal Sialidase)) is a Protein Coding gene. Diseases associated with NEU1 include sialidosis, type i and juvenile sialidosis type 2. Among its related pathways are Sphingolipid metabolism and Sphingolipid metabolism. GO annotations related to this gene include exo-alpha-(2->3)-sialidase activity and exo-alpha-(2->8)-sialidase activity.

UniProtKB/Swiss-Prot for NEU1 Gene

  • Catalyzes the removal of sialic acid (N-acetylneuraminic acid) moities from glycoproteins and glycolipids. To be active, it is strictly dependent on its presence in the multienzyme complex. Appears to have a preference for alpha 2-3 and alpha 2-6 sialyl linkage.

Gene Wiki entry for NEU1 Gene

No data available for Tocris Summary , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for NEU1 Gene

Genomics for NEU1 Gene

Regulatory Elements for NEU1 Gene

Epigenetics Products

  • DNA Methylation CpG Assay Predesigned for Pyrosequencing in human,mouse,rat

Genomic Location for NEU1 Gene

31,857,659 bp from pter
31,862,932 bp from pter
5,274 bases
Minus strand

Genomic View for NEU1 Gene

UCSC Golden Path with GeneCards custom track
Cytogenetic band:
Genomic Location for NEU1 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

Proteins for NEU1 Gene

  • Protein details for NEU1 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Protein Accession:
    Secondary Accessions:

    Protein attributes for NEU1 Gene

    415 amino acids
    Molecular mass:
    45467 Da
    Quaternary structure:
    • Interacts with cathepsin A (protective protein), beta-galactosidase and N-acetylgalactosamine-6-sulfate sulfatase in a multienzyme complex

neXtProt entry for NEU1 Gene

Proteomics data for NEU1 Gene at MOPED

Post-translational modifications for NEU1 Gene

  • N-glycosylated.
  • Phosphorylation of tyrosine within the internalization signal results in inhibition of sialidase internalization and blockage on the plasma membrane
  • Glycosylation at Asn186, Asn343, and Asn352
  • Modification sites at PhosphoSitePlus

Other Protein References for NEU1 Gene

ENSEMBL proteins:
Reactome Protein details:
REFSEQ proteins:

Antibody Products

  • R&D Systems Antibodies for NEU1 (NEU-1/Sialidase-1)

Domains for NEU1 Gene

Protein Domains for NEU1 Gene


Graphical View of Domain Structure for InterPro Entry



  • A C-terminal internalization signal (YGTL) appears to allow the targeting of plasma membrane proteins to endosomes
  • Belongs to the glycosyl hydrolase 33 family.
  • Contains 4 BNR repeats.
  • A C-terminal internalization signal (YGTL) appears to allow the targeting of plasma membrane proteins to endosomes
  • Belongs to the glycosyl hydrolase 33 family.
  • Contains 4 BNR repeats.
genes like me logo Genes that share domains with NEU1: view

No data available for Gene Families for NEU1 Gene

Function for NEU1 Gene

Molecular function for NEU1 Gene

GENATLAS Biochemistry:
neuraminidase,lysosomal,involved in stepwise degradation of complex type of oligosaccharide structure (glycoprotein catabolism),and cleavage of sialic acid from GM1 gangliosides
UniProtKB/Swiss-Prot BiophysicochemicalProperties:
pH dependence: Optimum pH is 4.6.;
UniProtKB/Swiss-Prot CatalyticActivity:
Hydrolysis of alpha-(2->3)-, alpha-(2->6)-, alpha-(2->8)- glycosidic linkages of terminal sialic acid residues in oligosaccharides, glycoproteins, glycolipids, colominic acid and synthetic substrates.
UniProtKB/Swiss-Prot Function:
Catalyzes the removal of sialic acid (N-acetylneuraminic acid) moities from glycoproteins and glycolipids. To be active, it is strictly dependent on its presence in the multienzyme complex. Appears to have a preference for alpha 2-3 and alpha 2-6 sialyl linkage.

Enzyme Numbers (IUBMB) for NEU1 Gene

Gene Ontology (GO) - Molecular Function for NEU1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0004308 exo-alpha-sialidase activity IDA 8985184
GO:0005515 protein binding --
GO:0052794 exo-alpha-(2->3)-sialidase activity IEA --
GO:0052795 exo-alpha-(2->6)-sialidase activity IEA --
GO:0052796 exo-alpha-(2->8)-sialidase activity IEA --
genes like me logo Genes that share ontologies with NEU1: view
genes like me logo Genes that share phenotypes with NEU1: view

Animal Model Products

miRNA for NEU1 Gene

miRTarBase miRNAs that target NEU1

No data available for Animal Models , Transcription Factor Targets and HOMER Transcription for NEU1 Gene

Localization for NEU1 Gene

Subcellular locations from UniProtKB/Swiss-Prot for NEU1 Gene

Lysosome membrane; Peripheral membrane protein; Lumenal side. Lysosome lumen. Cell membrane. Cytoplasmic vesicle. Note=Localized not only on the inner side of the lysosomal membrane and in the lysosomal lumen, but also on the plasma membrane and in intracellular vesicles.

Subcellular locations from

Jensen Localization Image for NEU1 Gene COMPARTMENTS Subcellular localization image for NEU1 gene
Compartment Confidence
lysosome 5
plasma membrane 5
vacuole 5
cytosol 1
golgi apparatus 1

Gene Ontology (GO) - Cellular Components for NEU1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0005764 lysosome IDA 8985184
GO:0005765 lysosomal membrane IEA --
GO:0005886 plasma membrane IEA --
GO:0016023 cytoplasmic membrane-bounded vesicle IEA --
GO:0030054 cell junction IDA --
genes like me logo Genes that share ontologies with NEU1: view

Pathways for NEU1 Gene

genes like me logo Genes that share pathways with NEU1: view

Pathways by source for NEU1 Gene

PCR Array Products

  • Pathway & Disease-focused RT² Profiler PCR Arrays

Interacting Proteins for NEU1 Gene

Gene Ontology (GO) - Biological Process for NEU1 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0006488 dolichol-linked oligosaccharide biosynthetic process TAS --
GO:0006665 sphingolipid metabolic process TAS --
GO:0006687 glycosphingolipid metabolic process TAS --
GO:0008152 metabolic process --
GO:0009313 oligosaccharide catabolic process IMP 8985184
genes like me logo Genes that share ontologies with NEU1: view

Drugs for NEU1 Gene

(2) Drugbank Compounds for NEU1 Gene

Compound Status Synonyms Cas Number PubChem ID Type Actions PubMed IDs
  • (-)-Oseltamivir
204255-11-8 65028 Target inhibitor approved
4-Acetamido-2,4-Didexoy-D-Glycero-Beta-D-Galacto-Octopyranosylphosphonic Acid
46937010 Target experimental

(62) HMDB Compounds for NEU1 Gene

(98) Novoseek inferred chemical compound relationships for NEU1 Gene

Compound -log(P) Hits PubMed IDs
zanamivir 96.1 122
oseltamivir 95.6 120
sialic acid 93.6 118
oseltamivir carboxylate 89.8 12
rimantadine 88.6 20
genes like me logo Genes that share compounds with NEU1: view

Transcripts for NEU1 Gene

mRNA/cDNA for NEU1 Gene

Unigene Clusters for NEU1 Gene

Sialidase 1 (lysosomal sialidase):
Representative Sequences:

Inhibitory RNA Products

  • Predesigned siRNA for gene silencing in human,mouse,rat for NEU1

Flow Cytometry Products

Alternative Splicing Database (ASD) splice patterns (SP) for NEU1 Gene

No ASD Table

Relevant External Links for NEU1 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for NEU1 Gene

mRNA expression in normal human tissues for NEU1 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

Protein differential expression in normal tissues for NEU1 Gene

This gene is overexpressed in Amniocyte (19.2), Fetal gut (11.3), Urine (7.9), and Liver (6.2).

Integrated Proteomics: protein expression from ProteomicsDB, PaxDb, MOPED, and MaxQB for NEU1 Gene

SOURCE GeneReport for Unigene cluster for NEU1 Gene Hs.520037

mRNA Expression by UniProt/SwissProt for NEU1 Gene

Tissue specificity: Highly expressed in pancreas, followed by skeletal muscle, kidney, placenta, heart, lung and liver. Weakly expressed in brain.
genes like me logo Genes that share expressions with NEU1: view

Primer Products

  • QuantiTect SYBR Green Assays in human,mouse,rat
  • Pre-validated RT² qPCR Primer Assay in human,mouse,rat
  • QuantiFast Probe-based Assays in human,mouse,rat

In Situ Assay Products

No data available for mRNA differential expression in normal tissues and Expression partners for NEU1 Gene

Orthologs for NEU1 Gene

This gene was present in the common ancestor of chordates.

Orthologs for NEU1 Gene

Organism Taxonomy Gene Similarity Type Details
(Bos Taurus)
Mammalia NEU1 35
  • 84.58 (n)
  • 85.78 (a)
NEU1 36
  • 86 (a)
(Canis familiaris)
Mammalia NEU1 35
  • 85.89 (n)
  • 88.32 (a)
NEU1 36
  • 87 (a)
(Mus musculus)
Mammalia Neu1 35
  • 83.79 (n)
  • 83.7 (a)
Neu1 16
Neu1 36
  • 83 (a)
(Pan troglodytes)
Mammalia NEU1 35
  • 99.6 (n)
  • 100 (a)
NEU1 36
  • 100 (a)
(Rattus norvegicus)
Mammalia Neu1 35
  • 83.05 (n)
  • 83.7 (a)
(Monodelphis domestica)
Mammalia NEU1 36
  • 66 (a)
(Anolis carolinensis)
Reptilia NEU1 36
  • 63 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia LOC100485853 35
  • 60.57 (n)
  • 62.05 (a)
(Danio rerio)
Actinopterygii neu1 35
  • 59.64 (n)
  • 60.8 (a)
neu1 36
  • 59 (a)
Species with no ortholog for NEU1:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • African clawed frog (Xenopus laevis)
  • African malaria mosquito (Anopheles gambiae)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • barley (Hordeum vulgare)
  • beta proteobacteria (Neisseria meningitidis)
  • bread mold (Neurospora crassa)
  • chicken (Gallus gallus)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • corn (Zea mays)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • fruit fly (Drosophila melanogaster)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • platypus (Ornithorhynchus anatinus)
  • rainbow trout (Oncorhynchus mykiss)
  • rice (Oryza sativa)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea squirt (Ciona intestinalis)
  • sea squirt (Ciona savignyi)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • thale cress (Arabidopsis thaliana)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)
  • wheat (Triticum aestivum)
  • worm (Caenorhabditis elegans)

Evolution for NEU1 Gene

Gene Tree for NEU1 (if available)
Gene Tree for NEU1 (if available)

Paralogs for NEU1 Gene

No data available for Paralogs for NEU1 Gene

Variants for NEU1 Gene

Sequence variations from dbSNP and Humsavar for NEU1 Gene

SNP ID Clin Chr 06 pos Sequence Context AA Info Type MAF
rs13118 -- 31,859,509(-) CCTCA(A/T)CTGAG utr-variant-3-prime
rs1054483 -- 31,859,268(-) GCACC(A/C)CCATG utr-variant-3-prime
rs1802186 -- 31,859,431(-) GTCCT(A/G)TCTTG utr-variant-3-prime
rs1802187 -- 31,859,381(-) TCAGG(G/T)AACTG utr-variant-3-prime
rs1802188 -- 31,860,114(-) ACCCT(G/T)TGGTA reference, missense

Structural Variations from Database of Genomic Variants (DGV) for NEU1 Gene

Variant ID Type Subtype PubMed ID
dgv6583n71 CNV Loss 21882294
dgv6592n71 CNV Loss 21882294
dgv6594n71 CNV Loss 21882294
nsv884472 CNV Loss 21882294
nsv508399 CNV Loss 20534489
nsv509126 CNV Insertion 20534489

Relevant External Links for NEU1 Gene

HapMap Linkage Disequilibrium report
Human Gene Mutation Database (HGMD)

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for NEU1 Gene

Disorders for NEU1 Gene

(1) OMIM Diseases for NEU1 Gene (608272)


  • Sialidosis (SIALIDOSIS) [MIM:256550]: Lysosomal storage disease occurring as two types with various manifestations. Type 1 sialidosis (cherry red spot-myoclonus syndrome or normosomatic type) is late-onset and it is characterized by the formation of cherry red macular spots in childhood, progressive debilitating myoclonus, insiduous visual loss and rarely ataxia. The diagnosis can be confirmed by the screening of the urine for sialyloligosaccharides. Type 2 sialidosis (also known as dysmorphic type) occurs as several variants of increasing severity with earlier age of onset. It is characterized by the presence of abnormal somatic features including coarse facies and dysostosis multiplex, vertebral deformities, mental retardation, cherry-red spot/myoclonus, sialuria, cytoplasmic vacuolation of peripheral lymphocytes, bone marrow cells and conjunctival epithelial cells. {ECO:0000269 PubMed:10944856, ECO:0000269 PubMed:11063730, ECO:0000269 PubMed:11279074, ECO:0000269 PubMed:11829139, ECO:0000269 PubMed:14695530, ECO:0000269 PubMed:8985184, ECO:0000269 PubMed:9054950}. Note=The disease is caused by mutations affecting the gene represented in this entry.

(1) University of Copenhagen DISEASES for NEU1 Gene

(96) Novoseek inferred disease relationships for NEU1 Gene

Disease -log(P) Hits PubMed IDs
influenza 93.5 266
sialidosis 90.7 37
sialidase deficiency 87.8 14
swine influenza 76 5
parainfluenza 73.2 17

Genatlas disease for NEU1 Gene

mucolipidosis,type I,sialidosis,types I and II,hydrops fetalis

Relevant External Links for NEU1

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
genes like me logo Genes that share disorders with NEU1: view

Publications for NEU1 Gene

  1. Cloning, expression and chromosomal mapping of human lysosomal sialidase and characterization of mutations in sialidosis. (PMID: 9054950) Pshezhetsky A.V. … Potier M. (Nat. Genet. 1997) 2 3 4 23
  2. Characterization of human lysosomal neuraminidase defines the molecular basis of the metabolic storage disorder sialidosis. (PMID: 8985184) Bonten E.J. … d'Azzo A. (Genes Dev. 1996) 3 4 23
  3. Characterization of the sialidase molecular defects in sialidosis patients suggests the structural organization of the lysosomal multienzyme complex. (PMID: 10767332) Lukong K.E. … Pshezhetsky A.V. (Hum. Mol. Genet. 2000) 3 4 23
  4. Mutations in sialidosis impair sialidase binding to the lysosomal multienzyme complex. (PMID: 11279074) Lukong K.E. … Pshezhetsky A.V. (J. Biol. Chem. 2001) 3 4 23
  5. Molecular mechanism of lysosomal sialidase deficiency in galactosialidosis involves its rapid degradation. (PMID: 9480870) Vinogradova M.V. … Pshezhetsky A.V. (Biochem. J. 1998) 3 4 23

Products for NEU1 Gene

Sources for NEU1 Gene

Back to Top